Here is the full list of all 30 Space Elite Force achievements.
destroy battle cruiser
destroy heavy destroyer
reach the maximum level!
destroy heavy cruiser
get 20x combo!
improve the life of the ship!
improve ship shield
improve the ship resistance!
destroy heavy frigate
Destroy Destroyer
collect double score power
Desttroy Cruiser
Kill 300 enemies!
someone sent a car into space, destroy it!
Destroy Frigate
get 10x combo!
Kill 200 enemies!
collect double orbs power
collect shield power
collect magnetic power
Kill 50 enemies!
collect super gun power
complete the hardcore mode!
1st in rank (infinite mode)
Complete a mission without suffering damage!